Bracket structure and clamping mechanism for battery pack

Abstract

The bracket structure comprises a first bracket and a second bracket, the first bracket comprises a first mounting plate and a second mounting plate, the second bracket comprises a third mounting plate and a fourth mounting plate, the clamping mechanism comprises a plurality of clamping structures, and each clamping structure comprises a first limiting plate and a rotary pressing air cylinder. The upper end of the first limiting plate abuts against the lower ends of the first mounting plate and the third mounting plate, the first limiting plate is provided with a limiting groove, the side wall of the limiting groove abuts against one side of the second mounting plate and one side of the fourth mounting plate, a first limiting block is arranged at the upper end of the rotary pressing air cylinder, and the lower end of the first limiting block abuts against the upper ends of the first mounting plate and the third mounting plate. Through the design that the first bracket and the second bracket are vertically connected, the stability of the bracket structure is enhanced, the side wall of the bracket structure is limited through the limiting groove, the upper end of the bracket structure is limited through the rotary pressing air cylinder and the first limiting plate, and the stability of the bracket structure during spot welding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle applications, and in particular to a bracket structure and a clamping mechanism for a battery pack. Background Art

[0002] With the recent rapid development of the domestic automotive industry, China's dependence on foreign oil has increased year by year, and the energy and environmental sectors are facing the most severe challenges. Electric vehicles are gaining increasing attention due to their advantages such as being pollution-free, quiet, simple in structure, easy to use and maintain, and high in energy conversion efficiency. The government has successively listed new energy and new energy vehicles as strategic emerging industries, providing key support. Electric vehicles are poised to enter a period of rapid development.

[0003] The bracket structure of electric vehicles is the main supporting mechanism for battery cells in the battery pack. The existing bracket structure has room for improvement in terms of its stability in supporting battery cells. At the same time, the automobile bracket structure is welded, but the existing welding clamping mechanism only clamps the two sides of the bracket, and the stability of the bracket structure during welding needs to be improved. Summary of the Invention

[0004] The embodiment of the present application provides a bracket structure and a clamping mechanism for a battery pack. The bracket structure enhances the overall structural stability of the bracket through the vertical connection design of the first bracket and the second bracket, so that it can withstand the weight of the battery pack and various forces and vibrations generated during the driving of the vehicle, thereby ensuring the safe fixation of the battery pack; the clamping mechanism limits the side walls of the first bracket and the second bracket through the limiting groove, and limits the upper ends of the first bracket and the second bracket through the rotating clamping cylinder and the first limiting plate, thereby improving the stability of the first bracket and the second bracket during spot welding and improving product production quality.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bracket structure for a battery pack, the bracket structure includes a first bracket and a second bracket, the first bracket includes a first mounting plate and a second mounting plate, the first mounting plate is perpendicular to the second mounting plate, the second bracket includes a third mounting plate and a fourth mounting plate, the third mounting plate is perpendicular to the fourth mounting plate, and one side of the second mounting plate is connected to one side of the fourth mounting plate.

[0006] Compared with the prior art, the advantages of the present invention are:

[0007] The first bracket is vertically connected by the first mounting plate and the second mounting plate, and the second bracket is vertically connected by the third mounting plate and the fourth mounting plate, the vertical connection design enhances the overall structural stability of the bracket, so that the bracket can bear the weight of the battery pack and various forces and vibrations generated during vehicle driving, and ensures the safe fixation of the battery pack; the design that one side of the second mounting plate is connected with one side of the fourth mounting plate further enhances the overall rigidity and stability of the bracket, and the connection mode enables the two brackets to form a more solid overall structure, thereby more effectively resisting external impact and vibration.

[0008] A clamping mechanism adopts the bracket structure of the battery pack, and the clamping mechanism comprises a plurality of clamping structures, and each clamping structure comprises a first limiting plate and a rotary pressing cylinder, the upper end of the first limiting plate is abutted with the lower end of the first mounting plate and the third mounting plate, the first limiting plate is provided with a limiting groove, one side of the side wall of the limiting groove is abutted with the other side of the second mounting plate, and the other side of the side wall of the limiting groove is abutted with the other side of the fourth mounting plate, and the upper end of the rotary pressing cylinder is provided with a first limiting block, and the lower end of the first limiting block is abutted with the upper end of the first mounting plate and the third mounting plate.

[0009] Compared with the prior art, the utility model has the advantages that:

[0010] One side of the second mounting plate is connected with one side of the fourth mounting plate, one side of the side wall of the limiting groove is abutted with the other side of the second mounting plate, and the other side of the side wall of the limiting groove is abutted with the other side of the fourth mounting plate, so that the side walls of the first bracket and the second bracket are limited, meanwhile, the lower end of the first limiting block of the rotary pressing cylinder is abutted with the upper end of the first mounting plate and the third mounting plate, and the upper end of the first limiting plate is abutted with the lower end of the first mounting plate and the third mounting plate, so that the upper end of the first bracket and the second bracket is limited, the stability during the spot welding work of the first bracket and the second bracket is improved, and the product production quality is improved.

[0011] As an improvement, the clamping mechanism further comprises a second limiting block, the second limiting block is arranged at one end of the first limiting plate, one side of the second limiting block is abutted with the other side of the second mounting plate, one side of the second limiting block is abutted with the other side of the second mounting plate, so that the contact area of the clamping mechanism and the second mounting plate is further increased, and the stability during the spot welding work of the first bracket and the second bracket is further improved.

[0012] As an improvement, a limiting member is provided at one end of the second limiting block, and the limiting member includes a fifth mounting plate, a second limiting plate, and a third limiting plate. The second limiting plate is provided on one side of the fifth mounting plate, and the third limiting plate is provided on the upper end of the fifth mounting plate. The other side of the fifth mounting plate is connected to the second limiting block, and one side of the second limiting plate is abutted against the other side of the second mounting plate. The upper end of the third limiting plate is abutted against the lower end of the first mounting plate, and the clamping of the second mounting plate is further strengthened by abutting one side of the second limiting plate against the other side of the second mounting plate. The clamping of the first mounting plate is further strengthened by abutting the upper end of the third limiting plate against the lower end of the first mounting plate, thereby improving the stability of the clamping mechanism in clamping the first bracket.

[0013] As an improvement, the clamping mechanism also includes a positioning member, which is arranged at one end of the first limit plate at the other end, and the positioning member includes a first positioning block and a second positioning block. The upper end of the first positioning block protrudes with a first positioning column, and one side of the first mounting plate extends outwardly to provide a positioning plate, the positioning plate is provided with a first through hole, and the first positioning column passes through the first through hole, and the upper end of the second positioning block protrudes with a second positioning column, and one end of the third mounting plate is provided with a second through hole, and the second positioning column passes through the second through hole. By passing the first positioning column through the first through hole and the second positioning column through the second through hole, the first mounting plate and the third mounting plate can be positioned and installed in the clamping structure, which is convenient for determining the position of the first bracket and the second bracket when they are welded.

[0014] As an improvement, the height of the first positioning block and the second positioning block is smaller than the height of the first limit plate, and the upper end of the first positioning block is further provided with a first protrusion, the first protrusion is provided on one side of the first positioning column, and the upper end of the first protrusion is abutted against the lower end of the first mounting plate, and the upper end of the second positioning block is also provided with a second protrusion, and the second protrusion is provided on one side of the second positioning column, and the upper end of the second protrusion is abutted against the lower end of the third mounting plate. Since the height of the first positioning block and the second positioning block is smaller than the height of the first limit plate, for the stability when the first bracket and the second bracket are welded, the upper end of the first protrusion provided at the upper end of the first positioning block abuts against the lower end of the first mounting plate, so that the first mounting plate remains horizontal, and the upper end of the second protrusion provided at the upper end of the second positioning block abuts against the lower end of the third mounting plate, so that the third mounting plate remains horizontal.

[0015] As an improvement, the positioning member also includes a third limit block, which is arranged between the first positioning block and the second positioning block. The upper end of the third limit block is abutted against the lower end of the first mounting plate. By abutting the upper end of the third limit block against the lower end of the first mounting plate, the contact area between the positioning member and the first mounting plate is increased, thereby improving the stability of the first mounting plate.

[0016] As an improvement, the upper end of the side wall of the limiting groove close to the fourth mounting plate is inclined to facilitate the fourth mounting plate to be installed in the limiting groove and to guide the fourth mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] Figure 1 A schematic diagram of a bracket structure and a clamping mechanism structure for a battery pack;

[0019] Figure 2 Schematic diagram of the coordination structure between the second limiting block and the limiting member;

[0020] Figure 3 Schematic diagram of the positioning member structure;

[0021] Figure 4 It is a schematic diagram of the coordination structure between the positioning member and the bracket structure.

[0022] The markings in the above figure are as follows: 1. Bracket structure; 1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.2.2.2.3.4.5.6.7.8.9.10.11.2.2.3.5.7.9.11.1.2.3.6.7.8.9.12.13.14.15.16.17.18.19.20.21.3.19.3.20.3.10.3.111.3.21.3.21.3.22.3.22.3.3.4.5.6.7.8.9.10.11.11.2.3.11.3.21.3.22.3.4.5.6.7.8.9.11.11.2 ... Tightening cylinder; 2.1.2.1, first limiting block; 2.2, second limiting block; 2.3, limiting member; 2.3.1, fifth mounting plate; 2.3.2, second limiting plate; 2.3.3, third limiting plate; 2.4, positioning member; 2.4.1, first positioning block; 2.4.1.1, first positioning column; 2.4.1.2, first protrusion; 2.4.2, second positioning block; 2.4.2.1, second positioning column; 2.4.2.2, second protrusion; 2.4.3, third limiting block. DETAILED DESCRIPTION

[0023] In the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] like Figure 1As shown, the bracket structure 1 includes a first bracket 1.1 and a second bracket 1.2. The first bracket 1.1 includes a first mounting plate 1.1.1 and a second mounting plate 1.1.2. The first mounting plate 1.1.1 is perpendicular to the second mounting plate 1.1.2. The second bracket 1.2 includes a third mounting plate 1.2.1 and a fourth mounting plate 1.2.2. The third mounting plate 1.2.1 is perpendicular to the fourth mounting plate 1.2.2. One side of the second mounting plate 1.1.2 is connected to one side of the fourth mounting plate 1.2.2.

[0025] The clamping mechanism 2 includes several clamping structures 2.1, which include a first limit plate 2.1.1 and a rotary pressing cylinder 2.1.2. The upper end of the first limit plate 2.1.1 is against the lower ends of the first mounting plate 1.1.1 and the third mounting plate 1.2.1. The first limit plate 2.1.1 is provided with a limit groove 2.1.1.1. One side of the side wall of the limit groove 2.1.1.1 is against the other side of the second mounting plate 1.1.2, and the other side of the side wall of the limit groove 2.1.1.1 is against the other side of the fourth mounting plate 1.2.2. The upper end of the rotary pressing cylinder 2.1.2 is extended to provide a first limit block 2.1.2.1, and the lower end of the first limit block 2.1.2.1 is against the upper ends of the first mounting plate 1.1.1 and the third mounting plate 1.2.1.

[0026] like Figure 2 As shown, the clamping mechanism 2 further comprises a second limiting block 2.2, which is provided at one end of the first limiting plate 2.1.1, and one side of the second limiting block 2.2 abuts against the other side of the second mounting plate 1.1.2.

[0027] A limiting member 2.3 is provided at one end of the second limit block 2.2, and the limiting member 2.3 includes a fifth mounting plate 2.3.1, a second limiting plate 2.3.2, and a third limiting plate 2.3.3. The second limiting plate 2.3.2 is provided on one side of the fifth mounting plate 2.3.1, the third limiting plate 2.3.3 is provided at the upper end of the fifth mounting plate 2.3.1, the other side of the fifth mounting plate 2.3.1 is connected to the second limit block 2.2, one side of the second limiting plate 2.3.2 is abutted against the other side of the second mounting plate 1.1.2, and the upper end of the third limiting plate 2.3.3 is abutted against the lower end of the first mounting plate 1.1.1.

[0028] like Figures 3 and 4As shown, the clamping mechanism 2 also includes a positioning member 2.4, which is provided at one end of the first limit plate 2.1.1 at the other end. The positioning member 2.4 includes a first positioning block 2.4.1 and a second positioning block 2.4.2. The upper end of the first positioning block 2.4.1 is protruded with a first positioning column 2.4.1.1, and a positioning plate 1.1.1.1 is extended from one side of the first mounting plate 1.1.1. The positioning plate 1.1.1.1 is provided with a first through hole 1.1.1.1.1, and the first positioning column 2.4.1.1 passes through the first through hole 1.1.1.1.1, and the upper end of the second positioning block 2.4.2 is protruded with a second positioning column 2.4.2.1, and one end of the third mounting plate 1.2.1 is provided with a second through hole 1.2.1.1, and the second positioning column 2.4.2.1 passes through the second through hole 1.2.1.1.

[0029] The height of the first positioning block 2.4.1 and the second positioning block 2.4.2 is less than the height of the first limit plate 2.1.1. The upper end of the first positioning block 2.4.1 is further provided with a first protrusion 2.4.1.2, the first protrusion 2.4.1.2 is provided on one side of the first positioning column 2.4.1.1, and the upper end of the first protrusion 2.4.1.2 is against the lower end of the first mounting plate 1.1.1. The upper end of the second positioning block 2.4.2 is further provided with a second protrusion 2.4.2.2, the second protrusion 2.4.2.2 is provided on one side of the second positioning column 2.4.2.1, and the upper end of the second protrusion 2.4.2.2 is against the lower end of the third mounting plate 1.2.1.

[0030] The positioning member 2.4 further includes a third limiting block 2.4.3, which is disposed between the first positioning block 2.4.1 and the second positioning block 2.4.2. The upper end of the third limiting block 2.4.3 abuts against the lower end of the first mounting plate 1.1.1.

[0031] The upper end of the side wall of the limiting groove 2.1.1.1 close to the fourth mounting plate 1.2.2 is set at an angle.

[0032] The rotating pressing cylinder 2.1.2 comprises a cylinder, a piston rod, a first limiting block 2.1.2.1, the cylinder is connected with one end of the piston rod and drives the piston rod to rotate and move up and down, the other end of the piston rod is connected with the first limiting block 2.1.2.1, the first limiting block 2.1.2.1 is arranged at one side of the first limiting plate 2.1.1 in the initial position, so that the first positioning column 2.4.1.1 passes through the first through hole 1.1.1.1.1, the second mounting plate 1.1.2 of the first bracket 1.1 is arranged in the inside of the limiting recess 2.1.1.1, so that one side of the side wall of the limiting recess 2.1.1.1 abuts against one side of the second mounting plate 1.1.2, the upper end of the first limiting plate 2.1.1, the first protrusion 2.4.1.2 and the third limiting block 2.4.3 abut against the lower end of the first mounting plate 1.1.1, one side of the second limiting block 2.2 abuts against one side of the second mounting plate 1.1.2, one side of the second limiting plate 2.3.2 abuts against one side of the second mounting plate 1.1.2, the upper end of the third limiting plate 2.3.3 abuts against the lower end of the first mounting plate 1.1.1, the fourth mounting plate 1.2.2 of the second bracket 1.2 is guided into the inside of the limiting recess 2.1.1.1 by the side wall of the limiting recess 2.1.1.1 arranged in an inclined manner at the upper end, so that the second positioning column 2.4.2.1 passes through the second through hole 1.2.1.1, and meanwhile, the other side of the side wall of the limiting recess 2.1.1.1 abuts against one side of the fourth mounting plate 1.2.2, the other side of the second mounting plate 1.1.2 abuts against the other side of the fourth mounting plate 1.2.2, the upper end of the first limiting plate 2.1.1 and the first protrusion 2.4.1.2 abut against the lower end of the third mounting plate 1.2.1, the cylinder drives the piston rod to rotate, so that the first limiting block 2.1.2.1 rotates to the upper side of the first mounting plate 1.1.1 and the third mounting plate 1.2.1, the cylinder drives the piston rod to move downward again, so that the lower end of the first limiting block 2.1.2.1 abuts against the upper end of the first mounting plate 1.1.1 and the third mounting plate 1.2.1 for limiting, and finally the first bracket 1.1 and the second bracket 1.2 are welded.

[0033] The utility model is described exemplarily above in combination with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various non-essential improvements are made by adopting the technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without improvement, all of which are within the protection scope of the utility model.

Claims

1. A bracket structure for a battery pack, characterized in that: The bracket structure (1) comprises a first bracket (1.1) and a second bracket (1.2); the first bracket (1.1) comprises a first mounting plate (1.1.1) and a second mounting plate (1.1.2); the first mounting plate (1.1.1) and the second mounting plate (1.1.2) are perpendicular to each other; the second bracket (1.2) comprises a third mounting plate (1.2.1) and a fourth mounting plate (1.2.2); the third mounting plate (1.2.1) and the fourth mounting plate (1.2.2) are perpendicular to each other; and one side of the second mounting plate (1.1.2) is connected to one side of the fourth mounting plate (1.2.2).

2. A clamping mechanism, characterized in that: it is used for a bracket structure of a battery pack as claimed in claim 1, the clamping mechanism (2) includes a plurality of clamping structures (2.1), the clamping structure (2.1) includes a first limiting plate (2.1.1), a rotary pressing cylinder (2.1.2), the upper end of the first limiting plate (2.1.1) is against the lower ends of the first mounting plate (1.1.1) and the third mounting plate (1.2.1), and the first limiting plate (2.1.1) is provided with a limiting groove ( 2.1.1.1), one side of the side wall of the limiting groove (2.1.1.1) abuts against the other side of the second mounting plate (1.1.2), the other side of the side wall of the limiting groove (2.1.1.1) abuts against the other side of the fourth mounting plate (1.2.2), and the upper end of the rotary pressing cylinder (2.1.2) is extended to be provided with a first limiting block (2.1.2.1), and the lower end of the first limiting block (2.1.2.1) abuts against the upper ends of the first mounting plate (1.1.1) and the third mounting plate (1.2.1).

3. A clamping mechanism according to claim 2, characterized in that: The clamping mechanism (2) further comprises a second limit block (2.2), the second limit block (2.2) being arranged at one end of the first limit plate (2.1.1), one side of the second limit block (2.2) being in contact with the other side of the second mounting plate (1.1.2).

4. A clamping mechanism according to claim 3, characterized in that: A limiting member (2.3) is provided at one end of the second limiting block (2.2), and the limiting member (2.3) comprises a fifth mounting plate (2.3.1), a second limiting plate (2.3.2), and a third limiting plate (2.3.3); the second limiting plate (2.3.2) is provided on one side of the fifth mounting plate (2.3.1); the third limiting plate (2.3.3) is provided on the upper end of the fifth mounting plate (2.3.1); the other side of the fifth mounting plate (2.3.1) is connected to the second limiting block (2.2); one side of the second limiting plate (2.3.2) abuts against the other side of the second mounting plate (1.1.2); and the upper end of the third limiting plate (2.3.3) abuts against the lower end of the first mounting plate (1.1.1).

5. The clamping mechanism according to claim 2, characterized in that: The clamping mechanism (2) further comprises a positioning member (2.4), the positioning member (2.4) being arranged at one end of the first limiting plate (2.1.1) at the other end, the positioning member (2.4) comprising a first positioning block (2.4.1) and a second positioning block (2.4.2), the upper end of the first positioning block (2.4.1) being protruded with a first positioning column (2.4.1.1), and one side of the first mounting plate (1.1.1) being extended with a positioning plate ( 1.1.1.1), the positioning plate (1.1.1.1) is provided with a first through hole (1.1.1.1.1), the first positioning column (2.4.1.1) passes through the first through hole ( 1.1.1.1.1), a second positioning column (2.4.2.1) is protruding from the upper end of the second positioning block (2.4.2), a second through hole (1.2.1.1) is provided at one end of the third mounting plate (1.2.1), and the second positioning column (2.4.2.1) passes through the second through hole (1.2.1.1).

6. The clamping mechanism according to claim 5, characterized in that: The heights of the first positioning block (2.4.1) and the second positioning block (2.4.2) are smaller than the height of the first limiting plate (2.1.1); a first protrusion (2.4.1.2) is further provided at the upper end of the first positioning block (2.4.1); the first protrusion (2.4.1.2) is arranged on one side of the first positioning column (2.4.1.1); the upper end of the first protrusion (2.4.1.2) abuts against the lower end of the first mounting plate (1.1.1); a second protrusion (2.4.2.2) is further provided at the upper end of the second positioning block (2.4.2); the second protrusion (2.4.2.2) is arranged on one side of the second positioning column (2.4.2.1); the upper end of the second protrusion (2.4.2.2) abuts against the lower end of the third mounting plate (1.2.1).

7. The clamping mechanism according to claim 5, characterized in that: The positioning member (2.4) further comprises a third limiting block (2.4.3), the third limiting block (2.4.3) being arranged between the first positioning block (2.4.1) and the second positioning block (2.4.2), the upper end of the third limiting block (2.4.3) being in contact with the lower end of the first mounting plate (1.1.1).

8. The clamping mechanism according to claim 2, characterized in that: The upper end of the side wall of the limiting groove (2.1.1.1) close to the fourth mounting plate (1.2.2) is arranged at an angle.

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